Cnidaria
Facts About Cnidaria
- They are radially symmetrical, which means if cut in half from top to bottom around central axis, it would be pretty symmetrical.
- They are all aquatic, some found in shallow coastal water and some in freshwater.
- They have two different body forms, bell-shaped and polyp. Cnidarias can be both, but one form is always more dominant.
- They use stinging cells, called cnidocytes, to repel predators.
- Cnidarias are carnivores and they have one opening systems.
- Examples: Jellyfish, Coral, Sea Anemones, Hydra